Presentation on theme: "Hydroelectric Energy April Lauyer, Kelly Bocchino, Nikki Bednar,"— Presentation transcript:
1 Hydroelectric Energy April Lauyer, Kelly Bocchino, Nikki Bednar, Trevor Casey, Sebastian Leslie
2 Why Hydroelectric Energy is Fantastic Hydro means water, and electric means energy, so it’s energy from water! :DIf you didn’t know, water is everywhere, it covers two thirds of the Earth!So basically using any source of water we can make energy (so long as the water is flowing of course)Take Clinton for example: the Red Mill used the water from the river to produce energy back in the olden days
3 How Do We Harness the Energy of Agua? Not only do mills utilize water for energy, but dams do as wellDams are a nifty little invention that block off rivers and choke the wildlife for our own benefit!The entire city of Las Vegas could not have been created without the use of dams to divert water from the Colorado River to the cityThe Hoover Dam is one of the most famous dams in the world, and it’s a monument to the power of rivers. The dam sends energy to cities miles away from it (like Las Vegas) and many other areas
5 Why YOU Want to Use Hydroelectric Energy Fossil Fuels emit tons of pollution, hydroelectric energy doesn’t do that at all! It’s completely fossil fuel freeHydroelectric energy producers (mills) require very little maintenance. Anything that does break is very easy to replace
6 Even More Pros! It produces moderate to high net energy It has an 80% efficiency rate, no energy is wastedIt has large untapped potentialLong life spanProvides Flood ControlProvides water for year round irrigation of croplandReservoirs are lot of fun! Who doesn’t like fishing?
7 The Very Few (and Harmless) Cons Dams can be expensive to buildFlooding can damage the landBiomass decay emits CO2Converts the land habitat to lake habitatThey run the risk of collapsingDecreases the fish harvest below damDecreases the flow of siltThe decomposing biomass and silt flow are the only major forms of pollution
8 How Do You Use this Energy? It’s simple, all you need is a flowing water source and a workforce to make the dam or millThe best location would be somewhere that has hills so the water can flow down and a large open area for the resulting reservoirIn our area, as of April 30th 2009 the community has been considering putting hydroelectric dams in both the Spruce Run Reservoirs and the Round Valley Reservoir, however it is still not available in NJ
9 CostsThe price of using hydroelectric energy is cents per kilowatt hourBuilding a hydroelectric dam itself costs about 300 million dollarsSo for one day you can expect about 3 dollars per house, and in a year it would cost about $1095For the entire state one year would cost an upwards of $100,000
10 How Do Dams Help You?The water turns turbines inside of the dam, which turns a giant magnet in copper wire which creates an electric charge, thereby creating energyThat energy is then sent to housesAlso dams create a roadway to be used, the Hoover Dam is a giant road which covers the entire gap and is accessible to cars
12 TransportationHydroelectric Cars: harness hydrogen and electricity to power its engine; fuel cells combine hydrogen and oxygen to produce electricity; efficiency is the same as gasoline-powered cars, yet they do not emit greenhouse gasesHydroelectric Trains: China’s Three Gorge’s Dam is the world’s largest hydroelectric project and fastest train; can reach a speed of 220 mph
13 What Is Tidal Power? One of the many forms of hydroelectric power It converts the energy of oceans tides into electricity and other useful forms of powerTides are more predictable than wind or solar energyRecent technological developments and improvements indicate that the total availability of tidal power may be much higher than previously assumed, and that economic and environmental costs may be brought down to competitive levels
14 How Does Tidal Power Work? A tidal barrage or dam is created at the mouth of a river or other choke point that connects to the oceanIn flood tidal power generation below the water level there are opening in this barrage that have turbines in themThese turbines are powered when the tide goes in or the water level rises.
16 To ConcludeHydroelectric energy would be easy to assimilate into our lives, the only hindrance would be the time it takes to build the dams. The easily available water makes this energy source very realisticThis is a very easy source of energy to use in conjunction with wind energy, building wind turbines and connecting them to the dam is a very easy and efficient process